[SYCL] [Joint Matrix] Modularized tests

[artemrad]

This is part 1 of 2 to improve reuse of common functions in the Joint Matrix test set. This changes focuses on removing functions, aliases and types from individual tests and relying on them being present in common.hpp.

[YuriPlyakhin]

I noticed that tests in XMX8 folder were not changed, while some .hpp files which are used for XMX8 were changed. Most likely it will cause compilation failures for XMX8 tests. Please, update tests in that folder as well accordingly.

Also other comments need to be addressed.

[YuriPlyakhin]

2 tests specific for CPU are not running in pre-check-in testing. Could you run them locally to verify your changes or remove these 2 tests from PR?

[dkhaldi]

Why did you remove the changes from the CPU tests?
Remember, at the end of the enhancements you are making to the tests, there will be no CPU vs GPU tests really as the runtime query will take care of the right dispatch. So these tests should not really be treated differently.

[artemrad]

@dkhaldi - I removed the changes to the CPU tests because it was not trivial to convert the CPU centric matrix_multiply_ref() to common.hpp:matrix_multiply_ref(). These tests can be updated and aligned with common.hpp with a future change

[artemrad]

@intel/llvm-gatekeepers Ready to merge